Nomenclature
dp - particle diameter, m
df - effective liquid film thickness, m
D1 - molecular diffusivity in mobile phase, m^2/s
Dm - diffusion coefficient in the mobile phase
Dп - molecular diffusivity in immobile phase, m^2/s
E - power of heat generation
f(k) - function of retention factor
F - flow rate
F1 - fractional volume of mobile phase, m^3/m^3
Fп - fractional volume of immobile phase, m^3/m^3
Fopt - optimum flow
h - reduced plate height
Hp - peak height
H - plate height (HETP)
k or k' - retention factor
K - distibution factor
N - plate count
ΔP - pressure dop (bar)
ΔPopt - pressure drop at optimum linear velocity (bar)
q - heat flux
r - column radius
rc - column to detector connecting tubing internal radius
Rc - column radius
Rs - resolution
ΔT - radient temperature gradient
u or uo - linear velocity
Vcell - flow cell volume
Vinj - injection volume
Greek letters
γ - labyrinth (obstruction) factor
λ - factor in eddy diffusion (packing constant)
λ (in eq. 7.) - the radial heat conductivity of the column packing
ф - flow resistance
η - viscosity of the mobile phase (cP)
φ - column resistance
νopt - optimum linear velocity
α - selectivity
ω (w) - peak width
τ - response rate
τ² - time-related extra-column contribution to band spreading
σc² - length variance of the peak in the column
σ²total - total band spreading from column and extra-column contributions
σν² - volumetric extra-column contribution to band spreading
εt - total porosity
Nomenclature
dp - particle diameter, m
df - effective liquid film thickness, m
D1 - molecular diffusivity in mobile phase, m^2/s
Dm - diffusion coefficient in the mobile phase
Dп - molecular diffusivity in immobile phase, m^2/s
E - power of heat generation
f(k) - function of retention factor
F - flow rate
F1 - fractional volume of mobile phase, m^3/m^3
Fп - fractional volume of immobile phase, m^3/m^3
Fopt - optimum flow
h - reduced plate height
Hp - peak height
H - plate height (HETP)
k or k' - retention factor
K - distibution factor
N - plate count
ΔP - pressure dop (bar)
ΔPopt - pressure drop at optimum linear velocity (bar)
q - heat flux
r - column radius
rc - column to detector connecting tubing internal radius
Rc - column radius
Rs - resolution
ΔT - radient temperature gradient
u or uo - linear velocity
Vcell - flow cell volume
Vinj - injection volume
Greek letters
γ - labyrinth (obstruction) factor
λ - factor in eddy diffusion (packing constant)
λ (in eq. 7.) - the radial heat conductivity of the column packing
ф - flow resistance
η - viscosity of the mobile phase (cP)
φ - column resistance
νopt - optimum linear velocity
α - selectivity
ω (w) - peak width
τ - response rate
τ² - time-related extra-column contribution to band spreading
σc² - length variance of the peak in the column
σ²total - total band spreading from column and extra-column contributions
σν² - volumetric extra-column contribution to band spreading
εt - total porosity